| 21. | Jaynes and Edson proposed evanescent mode waveguide filters in the late 1950s.
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| 22. | The choice of waveguide material depends on the substrate used.
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| 23. | This will produce a wikilink looking like this; waveguide.
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| 24. | For rectangular waveguides, these modes cannot be computed analytically.
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| 25. | He was co-inventor of the slotted waveguide antenna.
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| 26. | Some naturally occurring structures can also act as waveguides.
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| 27. | A waveguide is a hollow metallic conductor or pipe.
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| 28. | Ports are usually pairs of terminals with the requirement that the waveguide connections.
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| 29. | Two types of optical waveguides are in common use.
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| 30. | Typically the waveguide is operated so that only a single mode is present.
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